AutoCodesChevrolet – P013A 2017 Chevrolet Silverado

P013A 2017 Chevrolet Silverado Code - HO2S Slow Response Rich to Lean Bank 1 Sensor 2

Quick Answer

The Heated Oxygen Sensors (HO2S) are used for fuel control and catalyst monitoring. Common causes include Faulty Heated Oxygen Bank 1 Sensor 2, Heated Oxygen Bank 1 Sensor 2 harness is open or shorted, Heated Oxygen Bank 1 Sensor 2 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P013A 2017 Chevrolet Silverado indicates HO2S Slow Response Rich to Lean Bank 1 Sensor 2.
Common causes
Common causes include Faulty Heated Oxygen Bank 1 Sensor 2, Heated Oxygen Bank 1 Sensor 2 harness is open or shorted, Heated Oxygen Bank 1 Sensor 2 circuit poor electrical connection.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code Popularity 352
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 28, 2022
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Code P013A 2017 Chevrolet Silverado Description

The Heated Oxygen Sensors (HO2S) are used for fuel control and catalyst monitoring. Each HO2S compares the oxygen content of the surrounding air with the oxygen content of the exhaust stream. When the engine is started, the Engine Control Module (ECM) operates in an Open Loop mode, ignoring the HO2S signal voltage while calculating the air-to-fuel ratio. While the engine runs, the HO2S heats up and begins to generate a voltage within a range of 0 - 1, 000 mV. Once sufficient HO2S voltage fluctuation is observed by the ECM, Closed Loop is entered. The ECM uses the HO2S voltage to determine the air-to-fuel ratio. An HO2S voltage that increases toward 1, 000 mV indicates a rich fuel mixture. An HO2S voltage that decreases toward 0 mV indicates a lean fuel mixture.
The heating elements inside each HO2S heat the sensor to bring the sensor up to operating conditions faster. This allows the system to enter Closed Loop earlier and the ECM to calculate the air-to-fuel ratio sooner.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the accumulated mass airflow monitored during rich-to-lean transitions between 450 - 150 mV is greater than calibrated value.
OBDII Code P013A 2017 Chevrolet Silverado - HO2S Slow Response Rich to Lean Bank 1 Sensor 2 - AutoCodes.com
P013A 2017 Chevrolet Silverado Code - HO2S Slow Response Rich to Lean Bank 1 Sensor 2

What are the Possible Causes of the DTC P013A 2017 Chevrolet Silverado?

  • Faulty Heated Oxygen Bank 1 Sensor 2
  • Heated Oxygen Bank 1 Sensor 2 harness is open or shorted
  • Heated Oxygen Bank 1 Sensor 2 circuit poor electrical connection
  • Low or high fuel system pressure
  • Fuel contamination
  • Faulty fuel injectors
  • Exhaust gas leaks
  • Engine vacuum leaks

How to Fix the DTC P013A 2017 Chevrolet Silverado?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P013A 2017 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P013A 2017 Chevrolet Silverado code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P013A 2017 Chevrolet Silverado Code

1. What does OBDII code P013A mean for a 2017 Chevrolet Silverado?

P013A indicates the downstream oxygen sensor (Bank 1 Sensor 2) is responding slower than expected during transitions from rich to lean conditions.

2. What are the common symptoms of code P013A in a 2017 Chevrolet Silverado?

Symptoms may include poor fuel efficiency, a check engine light, rough idling, and reduced engine performance.

3. What causes the P013A code in a 2017 Chevrolet Silverado?

Common causes include a faulty oxygen sensor, exhaust leaks, wiring issues, or contamination of the sensor due to oil or coolant.

4. Can I drive my 2017 Chevrolet Silverado with the P013A code?

You can drive with this code temporarily, but ignoring it can lead to reduced performance and potential damage to the catalytic converter over time.

5. How do I fix the P013A code on my 2017 Chevrolet Silverado?

Repair options include replacing the oxygen sensor, fixing wiring or connector issues, and inspecting for exhaust leaks.

6. How do I know if the oxygen sensor is faulty for code P013A?

You can test the sensor's response using a scan tool or multimeter to check for slow voltage changes during rich-to-lean transitions.

7. Is a contaminated oxygen sensor a likely cause of the P013A code?

Yes, contamination from oil, coolant, or other substances can cause the sensor to respond sluggishly, triggering this code.

8. What tools do I need to diagnose the P013A code?

You’ll need an OBDII scan tool, a multimeter, and potentially access to the vehicle’s wiring diagram for diagnostics.

9. How much does it cost to fix a P013A code on a 2017 Chevrolet Silverado?

Repair costs vary but typically range from $100 to $300 for parts and labor, depending on whether the sensor or other components need replacement.

10. Can an exhaust leak cause the P013A code on a 2017 Chevrolet Silverado?

Yes, an exhaust leak can disrupt the oxygen sensor’s readings and contribute to slow response times, triggering this code.

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